<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>基本列表</title>
    <script src="../js/vue.js"></script>
  </head>

  <body>
    <!--
        v-for指令:
            1.用于展示列表数据
            2.语法: v-for="(item, index) in xxx" :key="yyy"
            3.可遍历：数组、对象、字符串（很少用）、指定次数（很少用）
     -->

    <div id="root">
      <h2>人员列表（遍历数组）</h2>
      <ul>
        <!-- 参数不加括号也行，最好加；for...in可以，for...of也行；key不写Vue默认为index -->
        <!-- <li v-for="(p, index) in persons" :key="index"> -->
        <li v-for="p in persons" :key="p.id">{{p.name}}-{{p.age}}</li>
      </ul>

      <h2>汽车信息（遍历对象）</h2>
      <ul>
        <li v-for="(value, key) in car" :key="key">{{key}}-{{value}}</li>
      </ul>

      <h2>遍历字符串</h2>
      <ul>
        <li v-for="(char, index) in str" :key="index">{{index}}-{{char}}</li>
      </ul>

      <h2>遍历指定次数</h2>
      <ul>
        <li v-for="(number, index) in 5" :key="index">{{index}}-{{number}}</li>
      </ul>
    </div>
  </body>
  <script>
    Vue.config.productionTip = false;

    new Vue({
      el: "#root",
      data: {
        persons: [
          { id: "001", name: "张三", age: 18 },
          { id: "002", name: "李四", age: 19 },
          { id: "003", name: "王五", age: 13 },
        ],
        car: {
          brand: "奥迪",
          price: "70w",
          color: "黑色",
        },
        str: "hello",
      },
    });
  </script>
</html>
